Re: moving divs: this is probably not what you want to do. Re: performance, check out the Chrome developer tools for info on the redraws / re-paints; this is wh

Re: moving divs: this is probably not what you want to do. Re: performance, check out the Chrome developer tools for info on the redraws / re-paints; this is where your performance hit likely is. Pre-rendering to an off-screen canvas may help here, but I'm definitely no UI / UX expert. Check these out too: Chrome dev tools primer: https://developers.google.com/chrome-developer-tools/ https://developers.google.com/chrome-developer-tools/ Getting dirty with chrome dev tools: http://net.tutsplus.com/tutorials/tools-and-tips/chrome-dev-tools-javascript-and-performance/ http://net.tutsplus.com/tutorials/tools-and-tips/chrome-dev-... Forcing a redraw/re-paint with some other good info: http://stackoverflow.com/questions/3485365/how-can-i-force-webkit-to-redraw-repaint-to-propagate-style-changes http://stackoverflow.com/questions/3485365/how-can-i-force-w... Canvas performance: http://www.html5rocks.com/en/tutorials/canvas/performance/ http://www.html5rocks.com/en/tutorials/canvas/performance/ More on SVG: http://www.mysparebrain.com/svgjs2#(1) http://www.mysparebrain.com/svgjs2#(1) General JS optimization: http://www.mellowmorning.com/2008/05/18/javascript-optimization-high-performance-js-apps/ http://www.mellowmorning.com/2008/05/18/javascript-optimizat... Usually, I find that by asking about what you want to accomplish vs. how to do it, the results are better. Could you please give us some more context on what you're using this for? That will probably lead you to a better and more complete solution (unless you're just really curious about how to do specifically this, in which case, I bet others would be interested in that as well). Also, with all the best intentions, and coming from someone who only knows one language, check out this humorous post about "alot" vs "a lot" (unless that was intentional, in which case, lol). http://hyperboleandahalf.blogspot.com/2010/04/alot-is-better-than-you-at-everything.html http://hyperboleandahalf.blogspot.com/2010/04/alot-is-better... Good luck! :) [edited for formatting]